摘要
IEEE 802.11标准定义了能够统筹所有基于以太网的无线通信的协议。它是迄今为止最流行的无线局域网的标准。本文以Altera公司的FPGA为硬件平台,设计实现了一个无线局域网协议IEEE 802.11协议帧的生成器以构成802.11协议帧后供DSSS发射机作为发送信号。本设计主要实现了三个模块,一个是整个帧生成器的全局控制模块,二是CRC—32校验码生成模块,三是帧序号生成模块。本设计的特点是处理与发射同时进行,处理延迟小,实时性好,这个特点对于带宽窄、处理能力弱的无线网络及设备来说是很重要的。文中给出了本设计实现的系统整体方框图,Verilog HDL代码实现及其仿真结果。
IEEE 802.11.the most popular standard,deftnes the protocols which covers all of Ethernet based wireless communication.This paper presented an implementation of IEEE 802.11 Frame Generator.which used FPGA as a hardware platform.This generator constructs the 802.11 frame and supplied it to DSSS as signal to be sent.There are 3 modules in this design.The 1st is the global control modute.the 2nd module iS CRC-32 check and the 3rd is used to produce frame serial number.The characteristic of this de sign is that the signal process and the transmission are made at the same time,i.e.real time processing.That is important to the wireless network device,which has narrower bandwidth and lower process energy.The Verilog HDL codes, block diagram of the whole system.and the simulation results were described in this paper.
出处
《微计算机信息》
北大核心
2007年第20期161-164,共4页
Control & Automation
基金
国家自然科学基金项目(60574088)
